by abenet addisu n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
By: Abenet Addisu PowerPoint Presentation
Download Presentation
By: Abenet Addisu

Loading in 2 Seconds...

play fullscreen
1 / 15

By: Abenet Addisu - PowerPoint PPT Presentation


  • 90 Views
  • Uploaded on

By: Abenet Addisu. Electricity Generation Using an Air-Cathode Single Chamber Microbial Fuel Cell in the Presence and Absence of a Proton Exchange Membrane. Author Affiliations. The Department of Civil and Environmental Engineering The Penn State Hydrogen Energy Center

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'By: Abenet Addisu' - karif


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
by abenet addisu
By: Abenet Addisu

Electricity Generation Using anAir-Cathode Single ChamberMicrobial Fuel Cell in the Presenceand Absence of a Proton ExchangeMembrane

author affiliations
Author Affiliations
  • The Department of Civil and Environmental Engineering
  • The Penn State Hydrogen Energy Center
  • The Pennsylvania State University
  • RamanathanRamnarayanan
  • Shaoan Cheng
  • Study Supported By: National Science Foundation
study objective
Study Objective
  • Is a PEM necessary in microbial fuel cells?
  • Increase power density to levels never achieved by a aqueous cathode systems.
rationale
Rationale
  • The making of a more economically friendly Microbial Fuel Cell.
    • While increasing it’s power density levels.
methods
Methods
  • Type of Design for Air-Cathode with PEM
    • Consists of…
      • Anode and cathode placed on opposite sides in a Plexiglas
      • PEM cathode bonded the PEM directly onto a flexible carbon-cloth electrode.
        • Hot-pressed onto cathode.
  • Type of Design for Air- Cathode without PEM
    • Same structure except without PEM.
methods2
Methods
  • Experimental Conditions
    • Wastewater was gathered from the Pennsylvania State University Wastewater Treatment Plant.
    • Wastewater was put into the anode for bacteria to colonize.
      • 1200 mg/L of glucose was added to the wastewater for some trials.
methods3
Methods
  • Tests Used
    • Voltage was measured with multimeter then converted to power density (P=IV/A).
    • Oxygen across the cathode was calculated by measuring the dissolved oxygen in the anode chamber over time.
      • Using a nonconsumptivefiber optic oxygen probe.
results
Results

Microbial Fuel Cell With PEM

Microbial Fuel Cell Without PEM

sources of errors
Sources of Errors
  • No precautions were taken to maintain anaerobic conditions during liquid replacement.
  • Heating the PEM and cathode to bond them together causing…
    • Carboxylation
    • Degeneration of the catalyst of the cathode.
author s conclusion
Author’s Conclusion
  • Main disadvantage of not having a PEM
    • Potential for the loss of substrate due to aerobic oxidation by bacteria in the anode chamber.
  • The PEM can be eliminated while increasing power generation.
study conclusion
Study Conclusion
  • You can make a Microbial Fuel Cell without an PEM.
  • Several types of organic material can be used including wastewater.
  • Relation To My Project
    • A high-tech version of my project.
    • Variety of different substances in the anode.
critique
Critique
  • Somewhat confusing
    • A lot of measurements and abbreviations.
    • Lines on graphs were bunched together forming a unreadable blob.
  • If you’re not familiar with it’s vocabulary, it’s impossible to decipher.
by abenet addisu1
By: Abenet Addisu

Electricity Generation Using anAir-Cathode Single ChamberMicrobial Fuel Cell in the Presenceand Absence of a Proton ExchangeMembrane